THOMAS SANGCHUL HWANG (MD) – Retina Specialist (Ophthalmology) Physician, NPI 1508819947
Retina Specialist (Ophthalmology) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
343 OPHTHALMOLOGY in OR
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Provider Addresses for THOMAS SANGCHUL HWANG (MD)
UHY Crossleys, Station Road, Ballasalla, Malew, Rushen, IM99 6AB, Isle of Man
PORTLAND, OR 972084183
Phone: (503) 494-6107
Fax: (503) 494-0470
Type: Mailing
Casey Eye Institute, 3375, Southwest Terwilliger Boulevard, Marquam Hill, Homestead, Portland, Metro, Multnomah County, Oregon, 97239, United States
PORTLAND, OR 97239
Phone: (503) 494-8311
Fax: (503) 494-7233
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2007-02-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050322000768 | I | Ophthalmology | OR | TBD |
| I20070207000601 | I | Ophthalmology | WA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 92134 | Imaging of retina | 930 | 364 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 689 | 324 | $0 |
| 67028 | Injection of drug into eye | 585 | 171 | $0 |
| J0178 | Injection, aflibercept, 1 mg | 266 | 38 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 44 | 31 | $0 |
Insurance plans in this area (ZIP 97208)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | OR | |
| Diagnostic Radiology | TN | |
| - | OR | |
| Nurse Practitioner | OR | |
| - | OR | |
| - | OR | |
| General Surgery, Thoracic Surgery | WA | |
| - | OR | |
| - | OR | |
| - | WA |
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